CN1061638A - A kind of nozzle that is used for rock bit - Google Patents
A kind of nozzle that is used for rock bit Download PDFInfo
- Publication number
- CN1061638A CN1061638A CN 91110505 CN91110505A CN1061638A CN 1061638 A CN1061638 A CN 1061638A CN 91110505 CN91110505 CN 91110505 CN 91110505 A CN91110505 A CN 91110505A CN 1061638 A CN1061638 A CN 1061638A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- chamber
- spray chamber
- taking out
- jump ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Earth Drilling (AREA)
- Nozzles (AREA)
Abstract
The invention provides a kind of nozzle that is used for rock bit, is a kind of improved directed impulse jet nozzle of taking out spray chamber that has.The characteristics of this nozzle are the independent moulding of upper and lower nozzle, assembly welding or bonding being integral then, the middle impulse chamber that forms is made of main chamber and the ring resonator of shaking, following nozzle bore is along the lack of alignment certain angle, in the nozzle exit design spray chamber of taking out of being with inlet hole is arranged, on the end face of settling jump ring, an arc stage is arranged.It is good, durable in use and be convenient to jump ring and rise and get and advantage such as nozzle exchange that the present invention has on the suction shaft bottom return mud and landwaste, big, the directed bottom-hole cleaning of pulse energy and a rock breaking efficiency.
Description
The invention belongs to oil and geology department drilling well rock bit nozzle, is a kind of directed impulse jet nozzle of taking out spray chamber that has.
In rock bit nozzle technology field, mainly contain plain nozzle (Fig. 1), middle long nozzle (Fig. 2) and impulse jet nozzle (Fig. 3).The rock bit that U.S. Hughes Worktools Inc., Smith company, Ruide company and Sai Keruite company produce is mainly used plain nozzle, as patent US4673045, US4793426, long nozzle in also bringing into use, as patent US4687067, US4784231, domestic Jianghan Bit Plant and some other producer also produce this two kinds of nozzles.Chinese patent (89201391.5) proposes a kind of impulse jet nozzle.These nozzles all are the simple mud bottom-hole cleaning that relies on from this confined space of drill string, do not have make full use of that the part mud that returns from the shaft bottom and the landwaste that carries spray to the shaft bottom again take out the spray function.Existing impulse jet nozzle has adopted monolithic pressed technology in force, and this technology is because the sharp corner pressed density on jet expansion diameter top is low, and anti-slurry erosion ability is so the life-span of nozzle is lower.The 3rd problem that prior art exists is with behind the jump ring fixed nozzle, takes out jump ring and change the nozzle difficulty bigger.
The object of the present invention is to provide a kind of part mud that aspirating of design return from the shaft bottom and landwaste, bottom-hole cleaning and auxiliary rock efficient height, durable in use and be to get directed easily impulse jet nozzle of on original nozzle basis, improving.
Improvement design of the present invention is finished by following scheme.
1, existing impulse jet nozzle is carried out two improvement: the one, top nozzle and following nozzle are made moulding separately, assembly welding or bonding being integral then are from the density on technology assurance jet expansion diameter top.The 2nd, the impulse chamber in the middle of the upper and lower nozzle is made of the main chamber resonant cavity of shaking, and following nozzle bore increases the volume in self-excited oscillation pulse chamber and the effect of pulse energy and directed bottom-hole cleaning along the lack of alignment certain angle.
2, set up one section in the exit of nozzle and take out spray chamber (Fig. 4 and Fig. 5), its internal diameter is slightly larger than the jet expansion diameter, and taking out the spray chamber design has inlet hole.When from the mud of drill string with at a high speed when nozzle spray, produce a low-pressure area on every side at jet expansion.Take out spray chamber according to return mud and landwaste on the part of suction principle around the inlet hole from the inlet hole inspiration, converge from taking out the spray chamber exit with the high speed power stream again then and spray to the shaft bottom.This directed pulsing jet of high speed that has landwaste has better cleaning action and auxiliary rock effect to the shaft bottom.
3, at the arc step (Fig. 6) of settling an appropriate depth of processing on the end face of jump ring, the insertion depth of Circlip tongs point when increasing the card taking spring is avoided Circlip tongs to skid and is worn and torn, and makes the work of card taking spring become easily reliable, helps prolonging the life-span of Circlip tongs.After Circlip tongs leaves the jump ring groove, inject the inlet hole of nozzle, be easy to rotary nozzle and prize nozzle with an iron rod (or bottle opener).
Therefore, the present invention is by top nozzle and following nozzle assembly welding or be bonded as one, and following nozzle bore is along the lack of alignment certain angle, and middle impulse chamber design has main shake chamber and ring resonator, and the nozzle exit design has the taking out spray chamber of inlet hole of being with and constitutes.
The present invention compared with prior art has tangible advantage:
1, the mud through taking out the spray chamber ejection helps the bottom-hole cleaning because the mud that has returned on having sucked has partly increased discharge capacity and the jet impact force to the shaft bottom;
2, the present invention is a kind of directed pulse sandblast nozzle, the source of sand is the some of a large amount of landwaste of the broken rock generation of drill teeth, the landwaste that these mud carry is drawn into nozzle and high speed power stream and converges and spray to the shaft bottom better directed cleaning performance and bigger broken rock effect are arranged, and helps the raising of bit performance;
3, help tripping out jump ring and nozzle, and the application life that can improve Circlip tongs;
4, the impulse jet nozzle after the improvement has increased the space of impulse chamber, and nozzle quality is guaranteed, and has improved nozzle and has produced the energy of pulse and the application life of integral body.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 5 is an installation generalized section of the present invention.
With reference to Fig. 5, the present invention is by top nozzle (2) and (3) two part assembly weldings of following nozzle or bonding being integral, space between two parts is the impulse chamber of main shake chamber (10) and ring resonator (11) formation, and following nozzle bore is 0～5 ° along the lack of alignment angle [alpha].The exit of nozzle (8) set up a segment length 20～25mm long take out spray chamber (6), its internal diameter is than the big 2～4mm of jet expansion diameter, here said jet expansion diameter has all size, taking out the spray chamber internal diameter is big 2～4mm on any one jet expansion diameter, goes up design inlet hole (7) is arranged taking out spray chamber (6).On the end face of corresponding jump ring opening on the end face of settling jump ring (5), be processed with the arc step (9) that the degree of depth is 0.5～1mm.
Whole nozzle is fixed in the bit body water hole (1) with jump ring (5), and by O shape rubber ring (4) sealing.
The present invention ties hard alloy with sintered hard alloy or steel or pottery is made.Can both satisfy the needs of high-pressure jet drilling.
Of the present inventionly take out plain nozzle and the middle long nozzle (Fig. 4) that spray chamber and arc step are equally applicable to rock bit.
Claims (3)
1, a kind of nozzle that is used for rock bit comprises by upper and lower nozzle body and impulse chamber.It is characterized in that: top nozzle (2) and following nozzle (3) are two independent forming parts, assembly welding or bonding being integral then, following nozzle bore is along 0～5 ° of lack of alignment, middle impulse chamber design has main shake chamber (10) and ring resonator (11), nozzle exit design have band inlet hole (7) and internal diameter greater than the jet expansion diameter take out spray chamber (6), on the end face that jump ring (5) is installed, an arc step (9) is arranged.
2, nozzle according to claim 1, the length that it is characterized in that taking out spray chamber (6) is 20～25mm, its internal diameter is than the big 2～4mm of jet expansion diameter.
3, nozzle according to claim 1, the degree of depth that it is characterized in that arc step (9) is 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110505 CN1061638A (en) | 1991-10-30 | 1991-10-30 | A kind of nozzle that is used for rock bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110505 CN1061638A (en) | 1991-10-30 | 1991-10-30 | A kind of nozzle that is used for rock bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1061638A true CN1061638A (en) | 1992-06-03 |
Family
ID=4910124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110505 Withdrawn CN1061638A (en) | 1991-10-30 | 1991-10-30 | A kind of nozzle that is used for rock bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277051A (en) * | 2013-06-19 | 2013-09-04 | 天津市仕杰达能源技术开发有限公司 | Self-excitation type pulse polycrystalline diamond compact (PDC) drill bit |
| CN111997527A (en) * | 2020-10-30 | 2020-11-27 | 胜利油田固邦石油装备有限责任公司 | Long nozzle alloy drill bit for oil field drilling and use method thereof |
-
1991
- 1991-10-30 CN CN 91110505 patent/CN1061638A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277051A (en) * | 2013-06-19 | 2013-09-04 | 天津市仕杰达能源技术开发有限公司 | Self-excitation type pulse polycrystalline diamond compact (PDC) drill bit |
| CN103277051B (en) * | 2013-06-19 | 2015-04-01 | 天津市仕杰达能源技术开发有限公司 | Self-excitation type pulse polycrystalline diamond compact (PDC) drill bit |
| CN111997527A (en) * | 2020-10-30 | 2020-11-27 | 胜利油田固邦石油装备有限责任公司 | Long nozzle alloy drill bit for oil field drilling and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |